Title |
Assessment of physical activity in older Belgian adults: validity and reliability of an adapted interview version of the long International Physical Activity Questionnaire (IPAQ-L)
|
---|---|
Published in |
BMC Public Health, April 2015
|
DOI | 10.1186/s12889-015-1785-3 |
Pubmed ID | |
Authors |
Veerle Van Holle, Ilse De Bourdeaudhuij, Benedicte Deforche, Jelle Van Cauwenberg, Delfien Van Dyck |
Abstract |
Adequate monitoring of older adults' physical activity (PA) is essential to develop effective health promotion programs. The present study examined criterion validity and test-retest reliability of the long International Physical Activity Questionnaire (IPAQ-L), adapted for Belgian, community-dwelling older adults (65y and older). Participants (n = 434) completed the last seven days version of IPAQ-L, modified for the Belgian population of community-dwelling older adults. This elderly-adapted version of IPAQ-L combined vigorous and moderate activities, and questions on gait speed and recreational cycling were added. Furthermore, participants wore an ActiGraph GT3X(+) accelerometer for at least five days. Criterion validity was determined by comparing self-reported weekly minutes of moderate-to-vigorous physical activity (MVPA) and weekly minutes of total PA with accelerometer data, defined by two different cut points (Freedson vs. Copeland). To examine test-retest reliability, a subsample of 29 participants completed IPAQ-L for a second time within a ten day interval. IPAQ-L showed moderate criterion validity for measuring weekly minutes of MVPA (Spearman's ρ range 0.33- and total PA (Spearman's ρ range 0.33-0.40) However, plots on agreement between self-reported and accelerometer PA showed a systematic over-reporting of IPAQ-L for MVPA. In contrast, plots indicated that IPAQ-L under-estimated levels of total PA, however, this under-estimation of total PA was substantially lower than the observed over-reporting of MVPA. Test-retest reliability was moderate-to-good for work-related PA, domestic PA, MVPA and total PA (ICC range 0.52-0.81), but poorer for transportation and recreational PA (ICC 0.44 and 0. 43, respectively). Criterion validity results suggest that IPAQ-L is more valid to measure older adults' weekly minutes of total PA than weekly MVPA minutes. Moreover, results might imply that content validity of IPAQ-L can be improved if specific light-intensity PA items are incorporated into IPAQ-L. Test-retest reliability of IPAQ-L was moderate to good, except for weekly minutes of transportation and recreational PA, probably due to week-to-week variability of these behaviors. |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Indonesia | 1 | <1% |
United Kingdom | 1 | <1% |
Japan | 1 | <1% |
Spain | 1 | <1% |
Unknown | 219 | 98% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Master | 45 | 20% |
Student > Ph. D. Student | 34 | 15% |
Student > Bachelor | 33 | 15% |
Researcher | 18 | 8% |
Student > Doctoral Student | 9 | 4% |
Other | 30 | 13% |
Unknown | 54 | 24% |
Readers by discipline | Count | As % |
---|---|---|
Medicine and Dentistry | 45 | 20% |
Sports and Recreations | 34 | 15% |
Nursing and Health Professions | 26 | 12% |
Social Sciences | 11 | 5% |
Psychology | 8 | 4% |
Other | 30 | 13% |
Unknown | 69 | 31% |